Preparation of high performance metal protection nano coating

A metal protection and nano-coating technology, which is applied in the field of metal protection, coating, and preparation of metal protection nano-coatings, can solve the problem of poor dispersion uniformity of nanoparticles in coatings, difficulties in surface modification of nano-oxides, and coatings. It is difficult to improve performance, etc., to achieve the effect of improving dispersion uniformity, hardness and impact resistance.

A metal protection and nano-coating technology, which is applied in the field of metal protection, coating, and preparation of metal protection nano-coatings, can solve the problem of poor dispersion uniformity of nanoparticles in coatings, difficulties in surface modification of nano-oxides, and coatings. It is difficult to improve performance, etc., to achieve the effect of improving dispersion uniformity, hardness and impact resistance.

CN101486869AInactive Publication Date: 2009-07-22NANJING UNIV
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  • Preparation of high performance metal protection nano coating
  • Preparation of high performance metal protection nano coating
  • Preparation of high performance metal protection nano coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Ball mill the diluent and nano oxide particles according to the weight ratio of 50:1 to obtain a nano oxide suspension; weigh 16.93 g of methyl methacrylate and 8.89 g of the remaining copolymerizable monomers, add 25.82 g of the above nano oxide suspension g and 0.49 g of reaction additives were stirred with a glass rod for 10 minutes to obtain an in-situ polymerization precursor; under nitrogen protection, the above-mentioned in-situ polymerization Precursor solution 5.10g, and the stirring rate of the electric stirrer is controlled to 180-200r / min, the temperature of the reaction system is maintained at 80°C by heating in an oil bath, and the remaining 47.03g in-situ polymerization reaction precursor solution is added dropwise within 2 hours of reaction time , after the dropwise addition, raise the temperature of the reaction system to 90°C and keep it warm for 1h, remove the oil bath device, cool it down to 40°C naturally, pour out the reaction product in the four-ne...

Embodiment 2

[0042] Ball mill the diluent and the nano-oxide particles according to the weight ratio of 100:1 to obtain a nano-oxide suspension; weigh 8.47 g of methyl methacrylate and 4.44 g of the remaining copolymerizable monomers, and add 12.91 g of the above-mentioned nano-oxide suspension g and 0.19 g of reaction additives, stirred with a glass rod for 10 minutes to obtain the in-situ polymerization precursor; under nitrogen protection, add the above-mentioned in-situ polymerization Precursor solution 3.12g, and control the stirring rate of the stirring blade in the four-necked flask to 180-200r / min, maintain the temperature of the reaction system at 75°C by heating in an oil bath, add the remaining 22.89g in-situ polymerization dropwise within 4 hours of reaction time Reaction precursor solution, after the dropwise addition, raise the temperature of the reaction system to 85°C and keep it warm for 1h, remove the oil bath device, cool it down to 50°C naturally, pour out the reaction p...

Embodiment 3

[0044] Ball mill the diluent and nano-oxide particles according to the weight ratio of 50:1 to obtain a nano-oxide suspension; weigh 32.01 g of methyl methacrylate and 16.99 g of the remaining copolymerizable monomers, and add 49 g of the above-mentioned nano-oxide suspension and reaction additive 1.06g, stirred with a glass rod for 10min to obtain the in-situ polymerization precursor; under the protection of nitrogen, add the above-mentioned in-situ polymerization precursor Liquid 18g, and control the stirring rate of the electric stirrer to 180 ~ 200r / min, maintain the temperature of the reaction system at 85°C by heating in an oil bath, add the remaining 81.06g of in-situ polymerization precursor solution dropwise within 5 hours of reaction time, drop After the addition, raise the temperature of the reaction system to 90°C and keep it warm for 2 hours, remove the oil bath device, cool naturally to 30°C, pour out the reaction product in the four-necked flask, add 2.0 g of pH ...

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Abstract

A method for preparing a high-performance metal protection nanometer coating includes the following steps of: ball-milling diluter and nanometer oxide particles according to the weight ratio of 40-100:1 to obtain nanometer oxide suspension; measuring acrylic ester and remaining copolymerization monomers according to the weight ratio of 2-3:1 to obtain a mixed monomer, adding the nanometer oxide suspension accounting for 80 percent of the total weight of the mixed monomer and adding reaction additives to obtain a mixture which is stirred for 10min to obtain in-situ polymerization precursor liquid. Under nitrogen protection, 10 percent of the in-situ polymerization precursor liquid is added into a reaction container, within the reaction time of 1-8h, the rest 70-90 percent of the in-situ polymerization precursor liquid is dipped, and after the dripping is over, the temperature of the reaction system is raised to 90 DEG C and kept for 0.5-2h; and nanometer oxide-acrylics is obtained after adding pH regulator and stirring for 5-10min. With epoxy resin and assistant and the like added, the metal protection nanometer coating is prepared in a ball milling method.

Description

technical field [0001] The invention relates to a preparation method of a high-performance metal protective nano coating, in particular to the preparation and coating of a metal protective nano coating and the application of the coating in the field of metal protection. Background technique [0002] Metal materials are one of the most important engineering materials and are widely used in various fields of national economic construction. In practical applications, due to the corrosion of various acids, alkalis and salts in the environment and the erosion of humid environments, metal materials will lose their original luster and aesthetics, and their appearance properties will be severely damaged. As the corrosion spreads to the inside of the metal matrix and the degree of corrosion intensifies, the metal material will lose its original complete structure and excellent performance, eventually leading to safety accidents. Although replacing corroded metal materials in advance...

Claims

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Application Information

Patent Timeline
22 Jul 2009
Publication
CN101486869A
IPC
C09D133/08; C09D5/08; C09D163/02
Inventors
孟祥康; 陆洪彬